Multi-purpose paper, manufacturing method thereof and the application thereof

ABSTRACT

A multi-purpose paper, a manufacturing method thereof, and an application thereof are provided. The method of manufacturing the multi-purpose paper comprises steps of (a) providing a papermaking material and obtaining a clean paper pulp by treating the papermaking material, (b) adding at least one functional additive into the clean paper pulp to form the multi-purpose paper, and (c) processing the multi-purpose paper to form thereon an uneven surface structure. The cultivating paper has the combined functions of weed control, pest control, supplying the required nutrients to plants to help develop the root system, maintaining moisture and breath for the root system. The multi-purpose paper can be carriers of agricultural antagonistic microorganisms and serve as the basic functional substrate for weed control, pest control, sowing, growing seedlings, fertilization, fertilizer saving, manpower saving and organic cultivating.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a division of U.S. patent application Ser. No.10/001,318 filed on Oct. 26, 2001, now U.S. Pat. No. 6,811,653, which isincorporated by reference as if fully set forth.

FIELD OF THE INVENTION

The present invention relates to a multi-purpose paper, a manufacturingmethod thereof, and an application thereof.

BACKGROUND OF THE INVENTION

Generally, the agricultural production comprises the steps of soilpreparation, sowing, fertilization, hand weeding and harvesting, each ofwhich requires a huge amount of manpower. Particularly, the steps ofhand weeding and harvesting are the most manpower-consuming processes.To achieve the purposes of weeding and growing seedling, the farmersconventionally cover a plastic cloth over the land to retard the growthof weeds and use a plastic seedling-growing plate. However, after thecrops are harvested or the seedlings are transplanted, the farmer has noideal way in dealing with the useless plastic cloth and plate. Due, tothe plastic cloth and plate cannot be decomposed naturally, it tends tocause the second pollution once the plastic cloth and plate arediscarded. In addition, the plastic cloth and plate will result in poorwater and air-permeability and influence the ecological environment ofsoil microorganisms, root system of cultivated seedling, and the growthof crops.

The paper product has the advantage of being decomposable in naturalenvironment easily. After achieving the purpose of agriculturalproducing, it can be naturally disintegrated and integrated as part ofsoil after plowing so that it has no disadvantages of recycling,handling the discards and environmental pollution as compared to thoseby traditional plastic cloth and plate. Therefore, it is desired todevelop an agricultural paper material to replace the traditionalplastic cloth and plate, or the cultivating medium, which it would be anadvanced development in the aspects of economic benefits andenvironmental protection.

The papermaking material comes typically from the natural organic woodfibers, which are also excellent carriers for microorganisms. However,the conventional paper contains large amounts of chemical additiveswhich have nothing to do with the required features of agriculturalcrops. Thus the conventional waste paper is not suitable to be used inagricultural application of farmland cultivating.

Therefore, if the functional components can be added and adjusted in thepapermaking material during the manufacturing process in making thepaper product, it can be sufficiently applied in agriculture as desired.It is therefore an object of the present invention to provide amulti-purpose paper for being applied in agricultural planting andcultivating to solve the problems resulting from weed control, pestcontrol, sowing, growing seedlings, fertilization, fertilizer saving,manpower saving and special cultivating, thereby the agriculturalproducing possibly becoming a permanent operation.

SUMMARY OF THE INVENTION

It is therefore an object of the present invention to provide amulti-purpose agricultural paper having the features of non-polluting,biodegrading and strong light-blocking ability so that it can be used ascarriers of antagonistic microorganisms for being applied in plantcultivating and being used as functional basic materials to controlweeds, control pests, sow seeds, grow seedlings, supply fertilizer, savefertilizer, save manpower and cultivate special species.

According to the present invention, a method of manufacturing themulti-purpose paper comprises steps of (a) providing a papermakingmaterial and obtaining a clean paper pulp by treating the papermakingmaterial, (b) adding at least one functional additive into the cleanpaper pulp to form the multi-purpose paper, and (c) processing themulti-purpose paper to form thereon an uneven surface structure.

Preferably, the papermaking material is one selected from a groupconsisting of waste cardboard case fibers, the remaining basic materialsafter being taken away the bottom surface paper of waste cardboard case,biodegradable plant fibers and polymer fibers.

In accordance with the present invention, the step (b) comprises stepsof classifying, pulp-dispersing, coarse pulp-clarifying,fiber-separation, coarse screening, fine pulp-clarifying,heat-dispersion, fine screening, bleaching, pulp-washing andpulp-refining.

In accordance with the present invention, the functional additive is oneselected from a group consisting of Camellia seed cake's powder, calciumcarbonate, dry strength agent, wet strength agent, weed control agent,pest control agent and bacterial control agent.

In accordance with the present invention, the Camellia seed cake'spowder is added into the clean paper pulp at 1% by weight for preventinggolden apple snails (Pomacea Canaliculata Lamarck) and increasingdispersive level of fibers during manufacturing.

Preferably, the calcium carbonate is added into the clean paper pulp ata dosage based on classification of the papermaking material, sievingratio of fibers, desired water-absorbing ability and air permeability ofthe paper for increasing the physical strength of the paper andpromoting the proliferation of microorganisms.

Preferably, the weed control agent is one of inorganic and organicpacking materials selected from a group consisting of black carbon,silicon dioxide and titanium dioxide.

Preferably, the dry strength agent is one of acidic and neutral agentsof one of anionic and cationic ones selected from a group consisting ofmelamine formaldehyde resin, polymeric amine-epichlorohydrin resin,phenolic resin, glyoxalated polyacrylamide resin, polyacrylamide resin,raw starch, and modified starch.

Preferably, the wet strength agent is one of acidic and neutral agentsof one of anionic and cationic ones selected from a group consisting ofmelamine formaldehyde resin, polymeric amine-epichlorohydrin resin,phenolic resin, and glyoxalated polyacrylamide resin.

Preferably, the uneven surface structure is an embossed structure.

Preferably, the uneven surface structure is a corrugated structure.

Preferably, the multipurpose paper has a pH value ranging between about6 and about 7.

Preferably, the multi-purpose paper includes a corrugated paper layerhaving a basic weight ranged from 90 g/m² to 150 up g/m² and a surfacepaper layer having a basic weight ranged from 90 g/m² to 300 up g/m² inorder to have high wet strength, water-preventing ability andwater-permeating ability.

Preferably, the multi-purpose paper is a paper substrate with athickness ranged from 0.2 mm to 0.3 mm.

Preferably, the paper substrate has a water-absorbing ability largerthan Cobb, 1 Min, 20 gsm and a wet-rupture strength inlongitudinal/transverse direction lower than 1.0 kg/m² after 2 hoursimmersion.

Preferably, the paper substrate has a wet-breaking strength inlongitudinal/transverse direction lower than 1.0 kg/m² after 2 hoursimmersion.

Preferably, the multi-purpose paper has an air permeability larger thanabout 50 sec/100 cc.

Preferably, the multi-purpose paper is rolled up, and cut into aspecific shape in use.

Preferably, the paper is directly obtained from a waste cardboard case,and can be used in one of a group consisting of large area fields, homegardening, golf field, paddy fields and dry farmlands of general ororganic farming.

Preferably, the multi-purpose paper can be used in one of domesticallycultivating box containing organic soil or organic medium and industrialapplications selected from, a group consisting of indoor and outdoor netsupports, papery recyclable cultivating plate, and artificial indoorplanting system with devices of temperature control, cold and hot waterpipes, and light control.

Preferably, the uneven surface structure is used for sowing at least aseed thereon, and the method further includes a fixing layer for fixingthe seed, wherein the fixing layer comprises manufacturing steps of (a)providing a papermaking material and obtaining a clean paper pulp bytreating the papermaking material; and (b) adding at least onefunctional additive into the clean paper pulp to form the multi-purposepaper.

Preferably, the fixing layer is a thin layer die-cast with at least alattice for positioning and wrapping therein at least the seed.

Preferably, the multi-purpose paper has light-blocking weed-preventiveability and natural porous carriers suitable for proliferatingmicroorganisms thereon so that one of antagonistic microorganism forcontrolling a specific disease of a plant, natural pest controlcomponent and bacterial control agent can be coated, sprayed or immersedthereon and the multi-purpose paper can be used for covering one of landand cultivating medium for one of sowed plant and transplanted plant.

Preferably, the antagonistic microorganism is one of radioactiveantagonistic bacterium for resisting root nodule nematode andantagonistic bacterium of radish seedling wilt disease.

Preferably, the natural pest control component is selected from a groupconsisting of sodium dodecyl sulfate (SDS), linear alkyl sulfate (LAS),agricultural waste containing sponging and methyl alcohol extracted fromone of Camellia seed cake and tobacco powder.

Preferably, the one of the antagonistic microorganism, the pest controlcomponent and the bacterium control agent can be coated on the surfaceof the paper by an adhesive material, wherein the adhesive material is anatural neutral material of one of natural amylum gel and carboxymethylcellulose (CMC).

Preferably, the method further comprises a step of coating fertilizerpowder or capsule on the paper by one of spraying and coatingtechnologies, to form a slowly releasing organic or chemical fertilizercoating, thereby providing required nutrition for the plant.

Preferably, the method adjusts a formula of the coating according torequirements and features of a specific crop, and sprays or coats on aspecific position of the paper.

Preferably, the method further comprises a step of punching plural holeson the paper to partly pierce at least one of the fertilizer coating andthe uneven surface structure, and inlaying the seed in punched holes toallow the seed to root downwardly upon germination and to guide roots ofthe plant to grow in a diverging room formed under the uneven surfacestructure.

Preferably, the method further comprises one of a step of attaching afixing layer on the paper by an adhesive material for securing the seedon the paper, and a step of using the paper oppositely according to aspecific requirement of crops, wherein the adhesive material is oneselected from a group consisting of glue spray, starch and carboxymethylcellulose (CMC).

Preferably, the seed is further treated according to features of theseed by using a chemical seed-treating agent cooperating with oneselected from a group consisting of alginic soda acid, gelatine andpolyvinyl alcohol for protecting the germination of the seed, whereinthe chemical seed-treating agent is selected from a group consisting ofethylene glycol, propylene glycol, butylenes glycol, polyethyleneglycol, polypropylene glycol, polybutylene glycol glycerine and 2-octylglycol.

Preferably, the seed is selected from a group consisting of seedscovered with a paper pulp, seeds covered with a polymer compound, seedsof grains, seeds of medicinal herbs, seeds of economical plant, seeds ofgreensward, seeds of vegetables, seeds of fruits, seeds of flowers andartificial seeds cultivated from a cell culture.

Preferably, the method further comprises steps of overall embossing,punching holes, and making the uneven surface structure according torequirements of a specific crop, to increase water-absorbing ability,air permeability, size stability and limpness of dry and wetalternation.

According to another aspect, a method of manufacturing a multi-purposepaper for cultivating comprising steps of (a) providing a papermakingmaterial, (b) adding at least one functional additive into saidpapermaking material to form the multi-purpose paper, and (c) processingthe multi-purpose paper to form the multi-purpose paper thereon anuneven surface structure.

According to another aspect, a method of manufacturing a multi-purposepaper for cultivating comprising steps of (a) providing a papermakingmaterial and obtaining a clean paper pulp by treating the papermakingmaterial, (b) adding at least one functional additive into the cleanpaper pulp to form the multi-purpose paper, and (c) processing themulti-purpose paper to form the multi-purpose paper having an unevensurface structure sowing at least a seed thereon, wherein the unevensurface structure is used for placing thereon the seed and formsthereunder a diverging space to help develop the root system of theseed.

According to a further aspect of the present invention, a multi-purposepaper composes: a paper body having an uneven surface structure and atleast one functional additive distributed or wrapped inside themulti-purpose paper.

In accordance with the present invention, the surface paper of theuneven surface structure has an air permeability larger than 102 sec/100cc, breaking force larger than 2 kg/cm², dry pulling force inlongitudinal direction larger than 4 kg/15 mm, dry pulling force intransverse direction larger than 105 kg/15 mm, wet pulling force inlongitudinal direction larger than 3.5 kg/cm², wet pulling force intransverse direction larger than 1.4 kg/cm², and gluing ability degreelarger than 120 sec.

Preferably, the multi-purpose paper has a basic air permeability largerthan about 50 sec/100 cc, except the surface paper of the uneven surfacestructure has an air permeability larger than 102 sec/100 cc.

Preferably, the multi-purpose paper can be used in one of growingseedling of shallow crops and an operation system of cultivating andobtaining seedling.

Preferably, the at least one seed is covered by one of thin cultivatingmedium and soil.

The foregoing and other features and advantages of the present inventionwill be more clearly understood through the following descriptions withreference to the drawings, wherein:

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a diagram showing the cultivating application of themulti-purpose paper according to a preferred embodiment of the presentinvention;

FIG. 2 is a diagram showing the structure of the multi-purpose paperaccording to a preferred embodiment of the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The present invention will now described more specifically withreference to the following embodiments. Please refer to FIG. 1 and FIG.2, which are the diagrams showing the structure and the cultivatingapplication of the multi-purpose paper according to preferredembodiments of the present invention. The main elements are as follows:

1. The pest control microorganism-made agent and fertilizer 43 withlong-term effectiveness can be coated on the bottom surface paper ofcardboard case, the general waste cardboard case after taken away thebottom surface paper thereof, or the surface paper of the uneven surfacestructure 41 by spraying and coating to form the coated layer of pestcontrol microorganism-made agent 50. In a special design of seedwrapping lattice, a fixing layer 60 is a thin layer die-cast with atleast a lattice for positioning the seed 100 on the surface paper of theuneven surface structure 41 and wrapping the seed 100 with protectiveagent. The fixing layer 60 must have certain wet-breaking strength andwet-rupture strength after immersion so as to help the germination andthe downward growth of the root system.

2. The material of the bottom surface paper 42 is Kraft paper with highair-permeability, high water-permeability, high gluing ability, and highwet-breaking strength.

3. The material of the uneven surface structure 41 is preferable withlow wet-breaking strength, high water-permeability, and the feature ofeasily forming the uneven surface structure.

4. The multi-purpose paper with the uneven surface structure 41 for weedcontrol is fixed by the biodegradable bamboo spike 21 for wind-proof,and a spraying system 10 is mounted on the top thereof for water supply.

5. The seed 100 and the fertilizer 43 with long-term effectiveness areattached directly on the concave part of the uneven surface structure 41or wrapped inside the bottom of the uneven surface structure 41.Afterward, the seed 100 is covered by a thin wooden medium 31 or soil tomaintain the dampness and suppress the root system to grow downwardly.For short-term crops, the wooden medium 31 is covered on the unevensurface structure 41 with a thickness of 1˜2 cm after sowing the seedthereon, to help the germation.

6. For long-term crops, a supporting nylon net 22 having a supportingelevating rack 23 is mounted on the top the multi-purpose paper. Theheight of the supporting nylon net 22 can be adjusted by the supportingelevating rack 23 to help the plant grow upwardly through supporting theweight without suppressing the root system.

7. For saving manpower, the auto-spraying system 10 is mounted on thetop of the multi-purpose paper to supply water, liquid fertilizer, andthe nutrient for organic cultivating only.

8. The cultivating system of the present invention can be used for thenet support form of elevatedly cultivating, in order to meet therequirements of auto-harvesting, ergonomics of human body and theenvironmental cultivating on the mountainside land.

9. The multi-purpose paper can be used oppositely, wherein the bottomsurface paper 42 is faced upward, the fixing layer 60 is faced downwardand placed on the medium or the surface of the soil 80. Then, the bamboospike 21 is used to punch holes on the multi-purpose paper for plantinglong-term crops such as strawberry and melon to achieve the purposes ofweed control, pest control, inproving the ground temperature, improvingthe stability of paper size and easily biodegradable composting. Whenthe seed is attached on the uneven surface structure 41, a tiny hole isprovided beneath the seed to let the root system grow downwardly andpenetrate the multi-purpose paper and to help the cotyledon growupwardly.

10. The multi-purpose paper can be applied for growing and obtainingseedlings. For example, the stem of strawberry can be directly plantedon the multi-purpose paper for obtaining seedling easily and obtainingexcellent root system 44 grew under the uneven surface structure 41.

11. The cultivating system of the present invention can also be appliedfor long-term crop wit deep roots. The cultivating medium is placedunder the multi-purpose paper with a thickness of 15˜20 cm, wherein thecultivating medium can be placed on the water-preventing papery plate orbox. The plate or box can be recycled or composted after use, and awater pipe for adjusting temperature can be mounted therein forstabilizing the growth of the root system.

The present invention discloses a multi-purpose paper made ofconvertible waste pulp for weed control, pest control, and fertilizing.The papermaking material, is one selected from a group consisting ofwaste cardboard case fibers, biodegradable plant fibers and polymerfibers. After the steps of classifying, pulp-dispersing, coarsepulp-clarifying, fiber-separation, coarse screening, finepulp-clarifying, heat-dispersion, fine screening, bleaching,pulp-washing and pulp-refining, a clean pulp is obtained and sent to thepaper making machine. The waste pulp is treated inside the paper makingmachine and becomes the paper roll after drying. The paper roll will betreated with the processes of repeated rolling, embossing, making theuneven surface structure, punching holes, sowing, attaching the fixinglayer, cutting, rolling and packing, and then becomes the product ofmulti-purpose paper.

In order to meet the requirements of functional agricultural paper, inthe processes of waste pulp treating and paper manufacturing, at leastone functional additive is added, such as Camellia seed cake's powder,calcium carbonate, dry strength agent, wet strength agent, weed controlagent, pest control agent and bacterial control agent. Alternatively,the functional additive can be immersed, sprayed or coated on the papermaking machine and the processing equipments to make the best functionor effectiveness of the multi-purpose paper in the present invention.

When the wet multi-purpose paper is applied for general cropcultivating, the wet strength agent is one of acidic and neutral agentsof one of anionic and cationic ones selected from a group consisting ofmelamine formaldehyde resin, polymeric amine-epichlorohydrin resin,phenolic resin, and glyoxalated polyacrylamide resin. The dry strengthagent is one of acidic and neutral agents of one of anionic and cationicones selected from a group consisting of melamine formaldehyde resin,polymeric amine-epichlorohydrin resin, phenolic resin, glyoxalatedpolyacrylamide resin, polyacrylamide resin, raw starch, and modifiedstarch.

As for weed control agent, it can be chosen from one of inorganic ororganic packing materials selected from a group consisting of blackcarbon, silicon dioxide and titanium dioxide. The pest control componentcan be selected from sodium dodecyl sulfate (SDS) and linear alkylsulfate (LAS). The calcium carbonate can be added into the clean paperpulp at a dosage based on classification of the papermaking material,sieving ratio of fibers, desired water-absorbing ability and airpermeability of the paper for increasing the physical strength of thepaper and promoting the proliferation of microorganisms. Or the Camelliaseed cake's powder is added into the clean paper pulp at 1% by weightfor preventing golden apple snails (Pomacea Canaliculata Lamarck) andincreasing dispersive level of fibers during manufacturing.

In order to understand more about the present invention, the relatedmanufacturing process and data are disclosed to describe the feature andidea of the present invention in the following.

In the aspect of manufacturing process, not only the waste paper isfully classified, but also the high purity pulp and the excellentmanufacturing equipments are used, wherein the ratio of long fibers andshort fibers can be adjusted automatically according to the changeableCanadian Standard Freeness (CSF) of pulp. The using sufficiency of fiberpaper strength is fully elevated and the inner fiber structure isimproved so that the paper strength is strengthened to the requirementsfor use in the paddy field without using the chemical agent. Inaddition, the Wedgewire is used for screening one by one and washing,which can elevate the treating amount under the sieve with smallaperture. It might affect the paper strength, remove the substance thatis disadvantageous for the manufacturing process and human body health,and cooperate with the 5% high concentration pulp-milling system toelevate the stability of the manufacturing process and basic quality. Inthe aspect of paper making process, in order not to use the chemicaladditive, the low boxed concentration is used, thelongitudinal/transverse ratio is adjusted, the transverse basic weightis stabilized, the drying temperature is lowered, and the dust keeper ofcanvas and drying apparatus is mounted to lower the dampness gradient,all to make sure that the paper has the excellent features of paperstrength, water-absorbing and air-permeability to meet the requirementsof cultivating crops.

As in the aspect of quality, in order to enhance functions of weedcontrol and stabilizing the cultivating paper, the corrugated paperlayer has a basic weight elevated to range from 90 g/m² to 150 up g/m²,and the paper substrate 40 of the multi-purpose paper has a thicknessranged from 0.2 mm to 0.3 mm. In order to let the paper be covered bythe paddy field, the water-absorbing ability is elevated to be largerthan Cobb, 1 Min, 20 gsm and a wet-rupture strength inlongitudinal/transverse direction lower than 1.0 kg/m² after 2 hoursimmersion. In order to transplant the seedling smoothly when plantingthe non-irrigation crop, the wet-breaking strength inlongitudinal/transverse direction is controlled below 1.0 kg/m² after 2hours immersion. For the using of the non-irrigation crop and the needof the crop cultivating, the surface paper larger than 90 g/m² isembossed to elevate the air permeability larger than about 50 sec/100cc. Alternatively, the water-preventing agent is coated on the paper toprevent water permeation, the paper is embossed and becomes the unevensurface structure to elevate the water-permeability, air-permeability ofroot system, rotting-prevention, and dimension stability in paper sizeunder the condition of dry and wet alternation, to increase the utilityin different crops and cultivating styles. In addition, one importantcharacteristic of the multi-purpose paper in the present invention isthat the papermaking process doesn't add any chemical additive, andmaintain the PH value close to neutrality, thereby enhancing theactivity of microorganisms and the corps planted thereon. To cooperatewith the inoculation of antagonistic microorganisms, metal compoundcontained in the multi-purpose paper must be controlled lower than aspecific value according to the following Table 1 (According to TappiTest Method T 438 cm-96).

TABLE 1 Compound Percentage (%) Sodium oxide 2.17 Magnesium oxide 3.43Aluminum oxide 29.5 Silicon oxide 41 Sulfur trioxide 10.4 Calcium oxide12.1 Titania 1.36 Copper 0.0027 Chromium 0.00071 Nickel 0.0033 Iron 0.06Manganese 0.0026 Lead 0.01 Zinc 0.0075 Mercury ND* Arsenic ND  Totalchromium 0.00018 *ND means that the percentage of the metal compound isunable to be measured.

Please refer to FIG. 1 and FIG. 2, which are diagrams showing thecultivating application and structure of the multipurpose paperaccording to a preferred embodiment of the present invention. The SDScan be coated or sprayed on the surface of the multi-purpose paper. Thespores of high concentration microorganism agent or conidial coatingcontaining natural amylum gel and slowly released organic or chemicalfertilizer coating are coated on the side opposite to the SDS coatingand the bottom which contacts the soil. In order to allow the SDScoating for preventing golden apple snails, or the microorganism agentcoating resisting to low temperature, or Camellia seed cake's coating toremain on the surface of the paper and be coated thereon smoothly, themoisture contained in the paper can be overdried to a percentage of 5.Thereafter, high concentration microorganism agent, conidial containingadditive such as natural amylum gel (10⁵ per ml) or CaCO₃, and 2000 ppmSDS are sprayed on <70° C. multi-purpose paper to allow the water to beslightly evaporated and to treat the multi-purpose paper to restoremoisture. The multi-purpose paper is then fed to a cooling roller forreducing the temperature to <50° C., stored or reeled up and cut to formthe multi-purpose paper, and then processed to make the uneven surfacestructure.

Moreover, plural holes are punched on the multi-purpose paper to partlypierce at least one of the fertilizer coating and the uneven surfacestructure 41, and inlaying the seed in punched holes to allow the seedto root downwardly upon germation and to guide roots of the plant togrow in a diverging room formed under the uneven surface structure 41.After spraying the adhesive material such as starch or CMC, a fixinglayer 60 (such tissue paper or kitchen napkin with a basic weight of 35g/m²) is covered on the multi-purpose paper to produce the back pressureto help the seeds root downwardly when germination and help the stemstand erect. The cultivating paper here for sowing has the combinedfunctions of weed control, pest control, supplying the requirednutrients to plants to help develop the root system, maintainingmoisture and breath for the root system. Alternatively, the paper isembossed and made into the uneven surface structure 41 after treatedwith the microorganism and fertilizer, and then attached on the bottomsurface paper 42 which is treated in the same process and has thefeatures of excellent water-preventing and water-permeability. Thesprouting seed can have a root system with good breathing and staybetween the uneven surface structure 41 and the bottom surface paper 42to absorb nutrient, exchange air and grow healthily. Nevertheless, theseed is further treated with a chemical seed-treating agent cooperatingwith the agent such as soda acid, gelatine or polyvinyl alcoholaccording to the features of the seed and the cultivating method, toprotect the germination of the seed, wherein the chemical seed-treatingagent is selected from a group consisting of ethylene glycol, propyleneglycol, butylenes glycol, polyethylene glycol, polypropylene glycol,polybutylene glycol, glycerine and 2-octyl glycol. The seed can be seedscovered with a paper pulp, seeds covered with a polymer compound, orartificial seeds cultivated from a cell culture.

A waste cardboard case can be used when cultivating domestically. Theinner surface layer of low water-preventiveness can be taken away tomaintain the softness of the case and the smooth operation of sowingeasily and water-absorbing. The microorganism agent for pest control iscoated on the bottom surface paper 42 and the wooden anti-disease medium31 is sprayed on the uneven surface structure 41 to produce theshort-term non-irrigation crop. When the long-term non-irrigation cropis cultivated, a supporting nylon net 22 with height adjusting abilityis mounted on the top of the multi-purpose paper. Alternatively, theplant can be planted on the multi-purpose paper after holes punching oron the plate with the cultivating medium, to achieve the purposes ofsaving fertilizer, weed control, health and non-polluting.

According to the above, it is clear that the multi-purpose paper of thepresent invention has the features of non-polluting, naturaldecomposing, enhancing the healthy root system with well breathing, andstrong light-blocking. The multi-purpose paper can be carriers ofagricultural antagonistic microorganisms and serve as the basicfunctional substrate for weed control, pest control, sowing, growingseedlings, fertilization, fertilizer saving, manpower saving and organiccultivating. The multi-purpose paper can be applied to cultivate cropson the paddy fields and dry farmlands of general or organic farming,such as grains, medicinal herbs, economical plant, vegetables, fruits,and flowers. The multi-purpose paper can replace part of the plasticcultivating plate, reduce the problems of twisted roots and root systemaging, make the transplanted plant stronger. The multi-purpose paper canbe applied to direct-sowing of organic vegetable cultivating which hasless cultivating soil, to save the manpower and prevent weed and pest.In the practical usage, the multi-purpose paper can be rolled up, andcut into a specific shape in use. It can be also directly obtained froma waste cardboard case, and can be used in the large area fields, homegardening, or golf fields. The multi-purpose paper can be applied to thedomestic cultivating box containing organic soil or organic medium orthe industrial applications with devices of temperature control, coldand hot water pipes, and light control. In addition, all the relatedmaterials in the present invention are biodegradable and capable ofbeing composted, which is not limited by the soil environment andenables the achievement of the permanent operation of agriculturalproduction.

While the invention has been described in terms of what is presentlyconsidered to be the most practical and preferred embodiments, it is tobe understood that the invention needs not be limited to the disclosedembodiments. On the contrary, it is intended to cover variousmodifications and similar arrangements included within the spirit andscope of the appended claims which are to be accorded with the broadestinterpretation so as to encompass all such modifications and similarstructures.

1. A method of manufacturing a multi-purpose paper for cultivating,comprising steps of: (a) providing a papermaking material and obtaininga clean paper pulp by treating said papermaking material; (b) adding afunctional additive into said clean paper pulp to form saidmulti-purpose paper; (c) processing said multi-purpose paper to formsaid multi-purpose paper having an uneven surface structure and a bottomsurface paper; and (d) sowing at least a seed on said uneven surfacestructure; wherein said multi-purpose paper forms a diverging spacebetween said uneven surface structure and said bottom surface paper tohelp develop the root system of said seed.
 2. A method of manufacturinga multi-purpose paper for cultivating, comprising steps of: (a)providing a papermaking material; (b) adding a functional additive intosaid papermaking material to form said multi-purpose paper, wherein saidfunctional additive is one of Camellia seed cake's powder and Camelliaseed cake's powder combined with at least one functional additiveselected from a group consisting of calcium carbonate, dry strengthagent, wet strength agent, weed control agent, pest control agent,bacterial control agent and a combination thereof; (c) processing saidmulti-purpose paper to form thereon an uneven surface structure; and (d)sowing at least a seed on said uneven surface structure.
 3. Amulti-purpose paper, comprising: a paper body having an uneven surfacestructure and a bottom surface paper, said uneven surface structurehaving at least one seed sown thereon and being one of a corrugatedstructure and an embossed structure; at least one functional additivedistributed or wrapped inside one of said uneven a surface structure andsaid bottom surface paper; wherein said multi-purpose paper has a basicair permeability layer than about 50 sec/100 cc, except said surfacepaper of said uneven surface structure has area permeability larger than102 sec/100 cc.
 4. The multi-purpose paper according to claim 3, whereina surface paper of said uneven surface structure has an air permeabilitylarger than 102 sec/100 cc, breaking force larger than 2 kg/cm², drypulling force in longitudinal direction larger than 4 kg/15 mm, drypulling force in transverse direction larger than 105 kg/15 mm, wetpulling force in longitudinal direction larger than 3.5 kg/cm², wetpulling force in transverse direction larger than 1.4 kg/cm², and gluingdegree larger than 120 sec.
 5. The multi-purpose paper according toclaim 3, wherein said multi-purpose paper can be used in one of growingseedling of shallow crops and an operation system of cultivating andobtaining seedling.
 6. The multi-purpose paper according to claim 3,wherein said at least one seed is covered by one of thin cultivatingmedium and soil.